You can really get helcopters and airoplanes on the game. You have to have all the islands (21% game completion) and go to where you would find them usually on the origanal game. There is extra's like a fire rescue helicopter and air ambulance. There is also a little willie heliopter you can purchase at your posh hotel on the third island.
To get the fire rescue helicopter you have to got to the fire station on the first city next to the police station, go past the firetruck and around to the back. The helicopter should be sitting right there. You will enter a side mission but you can just press up 2 times to cancel and just do whatever you want.
To get the air ambulance, go to the hospital at the top of the first city and go through the entrance where the ambulance is parked. You will see a door you can go through, go through that and you will enter the roof. Right next to you should be a helicopter just waiting to be used. Again, the same with the fire one, you will enter a mission, but just press up twice and you can fly around.
For the little willie, just go to your hotel next to the golf course, and go in. When you get in go up the stairs, past the bit where you change your clothes, and through the door. You will enter your roof. Go to the dark patch with a unlock sign floating. It will cost you $2000 to get it but but you can just use he cheat to get $250,000 (up,down,left,right,x,x,l,r). Then you will get one little willie. To get the 2nd little willie just go round to the other side of the roof and go through the same progress. You will now have 2 little willies.
Note; when you get in one and don't return it back to your roof, you will ot get another one that place for free, you will have to buy a brand new one.
To get the normal helicopter got to the airport in the left entrance next to the airport. Go past the plane and you should see a helicopter on your left next to the ramps.
You will ener a side mission but just press up twice.
To get the police helicopter just go on top of the police station next to the fire station and just go on the roof. The helicopter should be right there, in front of you.
Note; if you are getting chased by the police, they can't get you up there for some reason.
To get the sea plane, go right up the main road on the right of the first city. Stay right until you come across the chopper bike shop. Go to the left hand side with the stairs on the side, and go up that pathway next to it. You will come across a sea plane. you cannot land it on a surface otherwise it will stop as soon as it touches the ground, and you will not be able to move it again.
To get the stunt plane, go into the airport entrance on the left of the actual airport building. Go straight up onto the runway past the helicopter. At the begining of the runway will will come across a small 1 seater plane. You will end up on a side mission but you can just press up twice and fly.
Added by: sanjay Mar 22nd 2007, ID#1276